The Axxess AXDIS-GMLN31 is a premium data interface designed for select GM vehicles, allowing seamless integration of an aftermarket radio while retaining critical factory features. Engineered for amplified and non-amplified systems, this interface maintains steering wheel controls, OnStar®, factory warning chimes, retained accessory power, and OEM audio functions for a smooth factory-style upgrade experience. Perfect for modern Apple CarPlay and Android Auto radio installations, the AXDIS-GMLN31 simplifies installation with plug-and-play compatibility and built-in steering wheel control retention. (metraonline.com) Features Retains factory steering wheel controls Retains OnStar® functionality Retains factory warning chimes Retains retained accessory power (R.A.P.) Provides navigation outputs: Reverse trigger Parking brake Vehicle speed sense (VSS) Compatible with amplified and non-amplified systems Built-in steering wheel control interface Plug-and-play installation design Micro-B USB updatable firmware Compatible with major aftermarket radio brands Specifications Product Type: GM Data Interface Vehicle Compatibility: Select GM vehicles System Compatibility: Amplified & non-amplified factory systems Accessory Output: 12V / 10A switched output Steering Wheel Control Retention: Built-in auto-detect capability Firmware Updates: Micro-B USB compatible Interface Functions: RAP retention Chime retention Navigation output generation OEM feature retention Retained Factory Features Steering wheel controls OnStar® Factory warning chimes Retained accessory power Factory amplifier integration OEM audio system functionality